John D. Coughlin | |
|---|---|
| Born | July 2, 1874 |
| Died | September 30, 1951 (aged 77) |
| Nationality | Irish-American |
| Occupation(s) | Police officer, private detective |
| Known for | Head of the NYPD detectives division from 1920-1928; chief investigator of the unsolved murder of Arnold Rothstein; later chief investigator for the Johns-Manville Corporation. |
| Relatives | William Poling, nephew |
John D. Coughlin (July 2, 1874 – September 30, 1951) was an American law enforcement officer, detective and police inspector in the New York City Police Department. He served as head of the NYPD detectives division from 1920 until 1928 when he was removed from office amid charges of police laxity following the murder of underworld figure Arnold Rothstein.